Aquametrix 2200R User Manual

OPERATING INSTRUCTION MANUAL

MODEL 2200R

ORP ANALYZER

REV. 10

Water Analytics, Inc.
100 School Street
Andover, MA 01810

Tel: [phone]

[phone]

Fax: [phone]

www.WaterAnalytics.net

TABLE OF CONTENTS

SECTION DESCRIPTION PAGE

1 GENERAL INFORMATION 1

2 SPECIFICATIONS 2

3 INSTALLATION 3

4 DESCRIPTION OF FUNCTIONS 8

5 START-UP AND OPERATION 14

6 OPERATING HINTS 20

7 UTILITY MENU 21

8 DIAGNOSTICS 23

9 TROUBLESHOOTING AND SERVICE 24

Model 2200R Page 1

MODEL 2200R ORP CONTROLLER

INSTRUCTION MANUAL

1.0 GENERAL INFORMATION

The AquaMetrix Model 2200R ORP analyzer is a versatile industrial microprocessor based
instrument. Setpoints and outputs are programmed through the menu with push buttons on the face
of the instrument. Calibration is achieved from the front panel menu.

The instrument may be used in conjunction with AquaMetrix 5-wire differential probes or with
conventional combination probes. However, the differential probes are highly recommended for
most processes.

The instrument provides non-isolated 0-5 Vdc, 0-1 mA and isolated 4-20 mA analog outputs. The 4­20 mA output may be programmed to represent any segment of the measuring scale. Two control
relays may be individually programmed to activate on either rising or falling ORP, thus permitting bi­directional control. In addition, the instrument has a high / low alarm relay.

The integrity of the system is ensured with a watch-dog timer and system alarm. A user-enabled
password feature protects all stored values.

The instrument is housed in a NEMA 4X enclosure. The standard unit is provided with mounting
hardware for surface mount applications. Both panel and pipe mount kits can be ordered
separately.

Model 2200R Page 2

2.0 SPECIFICATIONS

DISPLAY:

4 x 7 segment ½” LED Display

MEASURING RANGES:

ORP: 0 to 1000mV or -1000mV to +1000mV

POWER REQUIREMENTS:
Standard: 98-132 Vac, 50/60 Hz (less than 5 VA)
Optional: 196-264 Vac, 50/60 Hz (less than 5 VA)

23-26Vdc (nominal current 150mA)

AMBIENT CONDITIONS:

-30 to 50°C (-22 to 122°F)
0 to 90% R.H. non-condensing

CONTROL RELAY:

5A 115/230 Vac, 5A 30 Vdc SPDT

Selectable to activate in response to rising or falling

process
Fully adjustable setpoint and deadband
Manual Override Auto / Off / On for Relay A
Cycling Feature: On time 0-600sec Off time 0-600sec
Normal or Fail Safe operation

ALARM RELAY:

5A 115/230 Vac, 5A 30 Vdc SPDT

Programmable to activate at high and low alarm

setpoints
Deadband fixed at 2% of Full Scale

Normal or Fail Safe Operation

RELAY INDICATORS:

Three individual LEDs indicate status of the two

control relays and the alarm relay.

ANALOG OUTPUTS:

Non Isolated 0-1mA, 100 ohms maximum load
Non Isolated 0-5Vdc, 1000 ohms minimum load
Isolated 4-20mA, 800 ohms maximum load

Range Expand: The analog outputs can be scaled to

represent any segment of the full scale of the

instrument. Minimum segment is 10% of Full Scale.

Output Hold: The analog outputs are automatically

placed on hold when the unit is placed in any menu

mode.

SENSOR-TO-ANALYZER DISTANCE:

Differential Probe (R60) 3000 feet maximum

Conventional combination probe 25 feet (an

AquaMetrix Series 101 preamplifier is required for

distances greater than 25 feet)

CALIBRATION:

Two point

TEMPERATURE READOUT:

Automatic 0°C to 100°C (32°F to 212°F) If probe has
temperature compensation

SYSTEM ERROR:

A LED indicates a system alarm. The alarm relay can
be programmed to activate upon system memory loss.

DIAGNOSTICS:
Invalid entries are identified by respective flashing

LEDs. When a status error occurs, press CALL to
obtain the status error number, which corresponds to a
fault as described in the Status Fault Table.

TEST:
Display value and analog outputs can be set manually

to any value for testing and diagnostic purposes. This
feature allows the operation of the control relays,
alarm relay, and outputs to be tested independently of
process value.

SAFETY AND SECURITY:
Non-volatile memory (EEPROM)
Password protected if enabled
Watch-dog timer monitors microprocessor

Instrument automatically returns to on line operation if
accidentally left in menu mode. (This feature may be
field disabled if desired.)

SENSITIVITY: 0.1% of span

STABILITY: 0.1% of span per 24 hrs. non-cumulative.

NON-LINEARITY: 0.1% of span

REPEATABILITY: 0.1% of span or better

TEMPERATURE DRIFT:

Zero: 0.01% of span per °C
Span: 0.01% of span per °C

RESPONSE TIME:

0.5 second to 90% of value upon step change

ENCLOSURE:

NEMA 4X molded fiberglass reinforced polyester
enclosure with four 1/2" conduit holes and mounting
feet for surface mount. A NEMA 4 plug is provided for
one hole.

MOUNTING CONFIGURATIONS:

Standard is surface mount
Optional panel mount hardware Part No. C35-68
Optional pipe mount hardware Part No. C35-69

NET WEIGHT: 3 1/2 lb. (1.6 kg)

Approvals: CSA

Model 2200R Page 3

3.0 INSTALLATION

3.1 Location

3.1.1 Install the instrument within 3000 feet of where the AquaMetrix differential probe
(R60 Series) is installed. If a conventional combination probe (R500 Series) is used
the instrument must be within 25 feet of the probe for direct connection. An
AquaMetrix 101 Series preamplifier may be used to extend this distance to 3000
feet.

3.1.2 Select an installation site which is:

• free of mechanical vibrations

• reasonably clean and dry

• protected from falling corrosive fluids within the ambient temperature and humidity

specifications

• remote from high voltage relay and power switches

3.2 Type of Mounting

3.2.1 If the instrument is to be pipe or panel mounted a special hardware kit will be
required. For panel mount order part number C35-68. For pipe mount order part
number C35-69. Instructions for both types of mounting will be included with the
kits.

3.2.2 For surface mounting, four feet brackets, together with fastening screws, are
provided with the instrument. These should be fastened to the back of the
instrument and then it may be screwed or bolted in the selected location.

3.3 Conduit Connections

3.3.1 Four 1/2" conduit holes are provided in the bottom of the enclosure. One of these is
fitted with an approved water tight plug. To maintain NEMA 4X integrity, approved
conduit hubs must be used to connect conduit. The hubs must be connected to the
conduit before being connected to the enclosure. Any unused conduit holes must
be closed with water tight plugs or connectors.

3.3.2 For convenience of internal connections the right conduit hole (viewed from the
front) should be used for power connection; the next hole to the left for relay
outputs; the next hole to the left for analog outputs and finally the fourth hole for
sensor input.

Model 2200R Page 4

3.4 Electrical Connections

The 2200P is available in 3 different power options, 120Vac, 240Vac, and 24Vdc. Refer to
following sections for connecting the input power.

120Vac and 240Vac

3.4.1 To access the terminal strips open the door of the instrument and then unscrew the
captive retaining screw near the upper right hand corner of the panel. Now swing
open the panel to reveal the terminal strip on the power supply circuit board and the
smaller terminal strip on the back of the main circuit board.

CAUTION: The instrument operates from line voltage. This constitutes a

possible shock hazard. Ensure that line power is removed before attempting
connections. Note: A separate source of line power may have been
connected to the floating relay contacts.

3.4.2 The terminal strip on the power supply board at the back of the instrument is
labeled for line power, relay outputs and analog outputs. Connect the wiring in
accordance with this labeling. (Refer to Fig.1A)

Terminals 4 and 5 are wired directly to the input line voltage. These terminals can
be used to supply power to the relays. Use the common ground of Terminal 1as the
ground for the auxiliary devices. A separate source of power can also be used to
provide power to the relays. Ensure that the circuit breaker supplying the instrument
is able to supply enough current to the auxiliary devices, to ensure proper operation
of the instrument.

CAUTION: Connecting the line voltage to incorrect terminals may cause serious damage.

Model 2200R Page 5

24Vdc

3.4.3 To access the terminal strips open the door of the instrument and then unscrew the
captive retaining screw near the upper right hand corner of the panel. Now swing
open the panel to reveal the terminal strip on the power supply circuit board and the
smaller terminal strip on the back of the main circuit board.

3.4.4 The terminal strip on the power supply board at the back of the instrument is
labeled for input power, relay outputs and analog outputs. Connect the wiring in
accordance with this labeling. (Refer to Fig.1B)

Model 2200R Page 6

3.5 Sensor Connections

3.5.1 Jumpers J42 are used to select which type of probe is being used. If a differential
probe (R60) is used, ensure that both J42 jumpers are in the up position. If a
combinational probe is used, ensure that both jumpers are in the down position.
(Refer to Fig. 2)

3.5 Probe Connections: DIFFERENTIAL PROBE (R60 SERIES)

3.5.1 Ensure that both J42 jumpers are in the up position, leaving the pins nearest to the
bottom exposed. Connect the 6 wires from the probe to the TB2 terminal strip on
the main circuit board. Match the colors of the probe wires to the terminals marked
on the circuit board. (Refer to Fig. 3)

Model 2200R Page 7

3.6 Sensor Connections; Combination Probe (P500 Series) Without Temperature Compensation

3.6.1 a) Both J42 jumpers located on the swing-out board must be in the down position
leaving the pin nearest to the top exposed. (Refer to Fig. 4)

b) Connect the active electrode (ring terminal) to the terminal post on the swing-

out board and connect the shield to the SH terminal of the terminal strip TB2.

c) Connect a 300 ohm resistor to the YL and BL terminals on TB2.

3.7 Combination Probe with Preamplifier

3.7.1 If the analyzer is mounted in such a position that the 10 ft. cable on the
combinational probe cannot be directly connected to the 2200R. An AquaMetrix 101
Series preamplifier is required. The pre-amplifier converts the signal so that it can
be transmitted up to 3000 feet, the same as the differential (R60) probe. When the
pre-amplifier is used the controller must be configured, as if you were using a
differential (R60) probe. (Refer to FIG. 5)